There are many ways nature can affect one’s life. For any essay, it is important to plan. Look up the four-square writing process. This is an excellent planning tool. In a thesis statement, it would read something like: Nature can affect one’s life by causing health issues, possibly leaving you homeless or injured, or leaving you mentally unstable. Then you would take all three of this reasons, and use them as topics for your three body paragraphs. Health issues would be allergies or illnesses due to smog, pollen, stings, etc. Injured or homeless would be natural disasters like hurricanes or tornadoes. And mentally unstable could be depression if live in areas of a ton of rain or darkness, like in Alaska.